j^There must be a Red-shouldered Hawk’s nest somewhere 
in this vicinity for a bird was screaming loudly in Davis’ s 
Swamp this forenoon. 
Blue Jays were remarkably scarce about Concord, through 
March, April and the early part of May, and Purdie told me 
on May kst that he had noted their absence elsewhere near 
Boston. , . But during the past week they have appealed here 
in their usual numbers and to-day we saw them almost every¬ 
where - • at least eight or ten birds in all. 
Cedar-birds appeared to-day for the first time. 
Bull Frogs began trumping all over the marshes to-day. 
I have heard one or two before, but no general alarm e’er 
this. Hy}.as and Leopard Frogs are still as noisy as ever. "T 
At 3.30 P. M. we took the old boat and started up 
river. Several Spotted and Solitary Sandpipers were seen 
at Dakin’s Hill and as we entered the Holt we heard Greater 
Yellow-legs whistling. Ye soon discovered them scattered 
about on the meadow on the east side of the river and, 
running the boat in shore,watched them for half-an-hour or 
more. There were just fifteen of them on this meadow, while 
a solitary bird was feeding on the other side of the stream. 
As we were within fifty or sixty yards of the main 
flock, we had a fine chance to observe them. One or two 
birds, apparently acting as sentinels, stood erect and still 
on the tops of the tussocks, while the others rambled about 
through the short grass, probing the mud for food. When 
one of the sentinels whistled, all the other birds raised 
